一、前言核磁共振(NMR)法,在化学中应用已有30多年了。近十年来,随着超导磁体和脉冲傅里叶变换法的普及,NMR新方法和测定技术及数据处理方法不断涌现,化学工作者经常面 I. Introduction Nuclear magnetic resonance (NMR) method has been used in chemistry for more than 30 years. In recent ten years, with the popularization of superconducting magnets and pulse Fourier transform method, new NMR methods and measurement techniques and data processing methods are emerging constantly, and chemical workers often surface